EP0098248A2 - Dispositif pneumatique pour le déchargement de matières pulvérulentes ou granulaires de containers - Google Patents

Dispositif pneumatique pour le déchargement de matières pulvérulentes ou granulaires de containers Download PDF

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Publication number
EP0098248A2
EP0098248A2 EP83830127A EP83830127A EP0098248A2 EP 0098248 A2 EP0098248 A2 EP 0098248A2 EP 83830127 A EP83830127 A EP 83830127A EP 83830127 A EP83830127 A EP 83830127A EP 0098248 A2 EP0098248 A2 EP 0098248A2
Authority
EP
European Patent Office
Prior art keywords
air
container
distributor
pneumatic device
radial
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP83830127A
Other languages
German (de)
English (en)
Other versions
EP0098248A3 (fr
Inventor
Santi Menci
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MENCI SpA
Original Assignee
MENCI SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MENCI SpA filed Critical MENCI SpA
Publication of EP0098248A2 publication Critical patent/EP0098248A2/fr
Publication of EP0098248A3 publication Critical patent/EP0098248A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
    • B65G53/16—Gas pressure systems operating with fluidisation of the materials
    • B65G53/18—Gas pressure systems operating with fluidisation of the materials through a porous wall
    • B65G53/22—Gas pressure systems operating with fluidisation of the materials through a porous wall the systems comprising a reservoir, e.g. a bunker
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
    • B65G53/06—Gas pressure systems operating without fluidisation of the materials
    • B65G53/10—Gas pressure systems operating without fluidisation of the materials with pneumatic injection of the materials by the propelling gas
    • B65G53/12—Gas pressure systems operating without fluidisation of the materials with pneumatic injection of the materials by the propelling gas the gas flow acting directly on the materials in a reservoir

Definitions

  • the extraction of polverulent or granular materials from the above mentioned type of container is carried out by blowing compressed air into it in order to pressurize the container.
  • the air is blown in through special fixed distribution nozzles, usually located at the bottom of the container.
  • the unloading duct is opened and the material comes out prevalently due to the difference in pressure between the inside and the outside and, secondarily, due to the drag force exercised by the compressed air itself.
  • the peripheral edge of plate 8b is bent toward the interior of container 1 forming a continuous annular rim 18.
  • Rim 18 is partially superimposed over a corresponding rim 19 formed at the periphery of plate8a, a narrow passage 20 being defined between rims 18 and 19, which are inversely sloped with respect to plates 8a and 8b.
  • Passage 20 is substantially faced toward the center of the bottom and put into communication radial conduits 16 with the interior of container 1.
  • conduit 4 is of quadrilateral section and is provided with an air flow diverter 22 operated by means of crank 23, which allows for directing the flow of air toward the right or toward the left with respect to the axial direction of the conduit itself.
  • the unloading device according to the present invention may be advantageously applied to otherwise shaped containers or to multiple type containers, made up of a single container structure, internally subdivised with sectors into cells which may or may not be communicant, each of which is provided with its own bottom for unloading purposes.
  • the air distributor 7 is rotated by means of a motor instead of by the air itself, while conduit 5 for unloading the pulverulent or granular materialco ⁇ es out from the bottom of container 1 and in particular from the center of the same, while distributor 7 rotates around inlet end of said conduit.
  • a discoidal body 8 made up of two superimposed, spaced plates 8a and 8b is provided; the upper one 8a makes up the inside of the bottom of container 1, while plate 8b forms the lower outside part of said bottom and is fixed to the side walls of container 1.
  • Plates 8a and 8b are ring-shaped and, in particular, plate 8b carries a bracket 101 which is also substantially ring-shaped and concentric with plate 8b; the internal edge of bracket 101 is joined with the corresponding internal edge of plate 8a, thus defining the inlet end 5a of the discharge conduit 5.
  • a plurality of radial sectors 15 delimit corresponding radial conduits 16 for the air, which are similarly provided between plates 8a and 8b.
  • Bracket 101 holds air distributor 7 which rotates with respect to the first on ball crown 102 and which forms the lower part of chamber 17 where distributor 7 rotates; the upper vault of said chamber is constituted by the internal face of the edge of plate 8a that delimits the inlet 5a of conduit 5.
  • bracket 101 there is also an eccentrically-placed inlet 103 which accomodates the compressed air conduit 4 and a housing 104 for the transmission from the motor (not shown) to the air distributor 7. To this end, the motor rotates a shaft 104, at the end of which a first conical gear 105 is keyed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Air Transport Of Granular Materials (AREA)
EP83830127A 1982-06-23 1983-06-23 Dispositif pneumatique pour le déchargement de matières pulvérulentes ou granulaires de containers Withdrawn EP0098248A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT09448/82A IT1221878B (it) 1982-06-23 1982-06-23 Dispositivo pneumatico per lo scarico di materiali polverulenti o granulari da contenitori fissi o mobili
IT944882 1982-06-23

Publications (2)

Publication Number Publication Date
EP0098248A2 true EP0098248A2 (fr) 1984-01-11
EP0098248A3 EP0098248A3 (fr) 1985-08-14

Family

ID=11130287

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83830127A Withdrawn EP0098248A3 (fr) 1982-06-23 1983-06-23 Dispositif pneumatique pour le déchargement de matières pulvérulentes ou granulaires de containers

Country Status (2)

Country Link
EP (1) EP0098248A3 (fr)
IT (1) IT1221878B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1211202A4 (fr) * 1999-07-08 2008-04-23 Jfe Steel Corp Procede et dispositif de decoupage et de transport de matiere pulverulente et granulaire

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1458527A (en) * 1973-08-15 1976-12-15 Trythall Design Dev Ltd Pneumatic conveyors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1211202A4 (fr) * 1999-07-08 2008-04-23 Jfe Steel Corp Procede et dispositif de decoupage et de transport de matiere pulverulente et granulaire

Also Published As

Publication number Publication date
IT8209448A0 (it) 1982-06-23
IT1221878B (it) 1990-07-12
EP0098248A3 (fr) 1985-08-14

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

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PUAL Search report despatched

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Effective date: 19860102

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MENCI, SANTI